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Tardigrade
Question
Physics
A radioactive sample has an activity A in air. If the sample is kept inside water then its activity A'
Q. A radioactive sample has an activity
A
in air. If the sample is kept inside water then its activity
A
′
_________
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A
becomes less than A
B
becomes more than A
C
is same as A
D
will be less than or equal to A depending on the density of water
Solution:
Activity of a radioactive sample does not depend on the type of medium in which it is kept. Hence, if the radioactive sample is kept inside water, then its activity
(
A
)
remains same as in air. i.e.,
A
′
=
A